Time zone basics
Read city zones, dates and seasonal clock changes clearly.

Choose a City Time Zone Instead of a Fixed Offset
Use a named location and a specific date to compare times without assuming that an offset stays fixed.

Read the Date and Time Together Across Regions
Avoid previous-day and next-day mistakes by checking the calendar date alongside every converted clock time.

Understand Why a Meeting Time Can Shift Seasonally
Check a future date instead of assuming that two cities keep the same time difference throughout the year.

Use UTC as a Shared Reference Without Losing Local Context
Use a common reference moment while still showing the local dates and working hours that participants need.